Russian government currently is not blocking ports or foreign crypto-exchanges. We can't use BTCs here to pay, but otherwise it is OK. They stated several times that "blockchain is OK, but cryptocurrencies are not" (how that could work one without another?)) Actually - cryptocurrency legal status here is weird and unclear. All we know is that it is not 'allowed' but still not 'prohibited'.

Of course, if they want to block it - they might do that. But it seems to me that this problem is not so big to them so they just don't want to act yet.